CN212205798U - Pipe blocking device for leakage of shell-and-tube heat exchanger - Google Patents
Pipe blocking device for leakage of shell-and-tube heat exchanger Download PDFInfo
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- CN212205798U CN212205798U CN202020398581.XU CN202020398581U CN212205798U CN 212205798 U CN212205798 U CN 212205798U CN 202020398581 U CN202020398581 U CN 202020398581U CN 212205798 U CN212205798 U CN 212205798U
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- base
- tube
- leakage
- heat exchange
- shell
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Abstract
The utility model discloses a shell and tube heat exchanger leaks with stifled pipe device. The utility model discloses loop through double-end bolted connection by the order of base, O shape sealing washer, top cap, packing ring and nut and constitute. The utility model discloses only adopt quick, the simple and easy equipment of part, part simple structure, installation procedure are succinct, mainly pass through O shape circle and coil pipe inner wall's inseparable extrusion has just realized the quick restoration to coil pipe leakage fault in the shell and tube heat exchanger. In the maintenance process, the utility model discloses the equipment is simple and direct, and does not require the maintenance environment, and the maintenance technical requirement is low, and maneuverability is high, can realize simply, in time and maintain effectively leaking the coil pipe.
Description
Technical Field
The utility model relates to a handle the technical field that the heat exchange tube leaked among the shell and tube heat exchanger, concretely relates to stifled pipe device that simple and easy, effective, in time handled the heat exchange tube and leaked.
Background
The shell-and-tube heat exchanger is the most typical dividing wall type heat exchanger, and has a long history of industrial application and still dominates all heat exchangers to date. The shell-and-tube heat exchanger mainly comprises a shell, a heat exchange tube bundle, a tube plate, an end enclosure and the like, wherein the shell is mostly cylindrical, the parallel tube bundle is arranged in the shell, and two ends of the heat exchange tube bundle are fixed on the tube plate. In a shell-and-tube heat exchanger there are two fluids that exchange heat, one flowing inside the tube and one flowing outside the tube. When the shell-and-tube heat exchanger has a fault of heat exchange tube leakage, the shell-and-tube heat exchanger needs to be processed, otherwise, the contact of media inside and outside the heat exchange tube occurs along with the working operation of the heat exchanger, so that the material pollution, the waste and the equipment damage are caused, and even dangerous phenomena are caused. The heat exchange tube with faults is determined by a series of fault checking methods, and under the condition that the leakage amount of the tube bundle is lower than 10%, the leakage of the heat exchange tube is repaired by blocking two ends of the heat exchange tube so as to ensure the normal continuous working and operation of the heat exchanger. Currently, there are three methods of plugging the pipe:
firstly, the end part of the heat exchange tube is plugged by a conical aluminum plug. The method is characterized in that prefabricated conical aluminum plugs are driven into ports at two ends of a leakage heat exchange tube by a hammer, so that the heat exchange tube is blocked. However, when the fluid pressure is very high, the conical aluminum plug cannot withstand the pressure of the fluid, and is pressed by the fluid to the leaking place, so that the leaking place continuously leaks. Although this method is simple, it has a short cycle time and the heat exchange tube is deformed when the tapered aluminum plug is pressed by fluid. When the method is carried out again, the radius of the driven conical aluminum plug is necessarily larger than that of the previous conical aluminum plug, otherwise the conical aluminum plug cannot play a role in blocking at all and can be directly extruded by fluid to a leakage place.
And secondly, plugging by adopting a taper material, and welding the end part after plugging to finally ensure that the leakage phenomenon does not occur. However, in the welding process, the welding bead at the connection part between the periphery of the heat exchange tube and the tube plate is easy to crack and leak due to the fact that the local part of the heat exchange tube is heated highly. In addition, welding needs to be carried out in a clean, dry and air convection-free room, a welding area needs to be cleaned before welding, and a welding position needs to be polished and subjected to internal stress relief after welding. Namely, the welding environment has requirements and the welding technology has high requirements. The treatment method is complex in operation and long in treatment period.
And thirdly, tapping and plugging two ends of the leaked heat exchange tube by using bolts, additionally arranging an O-shaped sealing ring, coating a sealant, additionally arranging a stainless steel flat gasket, and compressing by using a stainless steel nut. After drying, the heat exchange tube is tested for pressure without leakage, and then the production operation is put into use. However, in this method, a waiting time is required for tapping the bolt, applying the sealant, and drying the sealant. Moreover, the sealant exists in an aqueous environment for a long time, the sealing performance is reduced, and finally, a leakage phenomenon occurs.
The pipe plugging method described above has the disadvantages of poor plugging air tightness, long time consumption, high technical requirements, limited ambient environment conditions and short replacement period, and still remains the problem to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model provides an above relevant problem. The utility model relates to a can simply, effectively, in time handle shell and tube heat exchanger's heat exchange tube leakage trouble to solve the problem that above-mentioned prior art exists.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model discloses connect gradually by the order of base, stud, O shape sealing washer, top cap, packing ring and nut.
Specifically, with the vertical observation so that of heat exchange tube end, in the heat exchange tube that leaks, contain the base the stud lower extreme with the O shape sealing washer, wherein, will the lower extreme of stud is screwed into in the screw of base the base is sheathe in on the base O shape sealing washer. Outside the heat exchange tube, contain the top cap the stud upper end the packing ring with the nut, wherein, will the top cap passes stud cover is in on the base, the upper end of stud in top cap department exposes.
Furthermore, be between the base with the top cap O shape sealing washer, again will the packing ring with the nut overlaps in proper order to the stud upper end, screws up the nut so that O shape sealing washer receives the extrusion, makes the inner wall of heat exchange tube with O shape sealing washer with the base is fixed.
Further, the base, the O-shaped sealing ring, the top cover, the washer and the nut are all connected through the stud bolts.
Further, the diameter of the side, opposite to the base, of the top cover is equal to that of the side, opposite to the base, of the top cover.
Further, the utility model discloses only adopt quick, the simple and easy equipment of part mainly passes through O shape sealing washer and the inseparable extrusion of heat exchange tube inner wall have just realized getting rid of fast of heat exchange tube leakage trouble in the shell and tube heat exchanger.
Furthermore, the water inlet end and the water outlet end are provided with the device of the utility model, which prevents the liquid outside the pipe from flowing into the pipe, thereby achieving the effect of plugging.
The utility model discloses an implementation method as follows:
screwing one end of the stud bolt into a screw hole of the base, sleeving the O-shaped sealing ring on the base through a screw rod of the stud bolt, putting the assembled pipe blocking device into a heat exchange pipe port with the leakage detected, exposing the other end of the stud bolt outside the heat exchange pipe, sleeving the top cover on the leakage heat exchange pipe port through the stud bolt, pushing the top cover to expose the outer end threads of the stud bolt, tightly attaching the top cover to the leakage heat exchange pipe port, sequentially sleeving the gasket and the nut, and tightly screwing the nut by using a wrench to fix the inner wall of the heat exchange pipe with the O-shaped sealing ring and the base.
The utility model discloses following profitable effect has been obtained for prior art:
the utility model discloses only adopt quick, the simple and easy equipment of part, part simple structure, easily manufacturing mainly pass through O shape sealing washer and the inseparable extrusion of heat exchange tube inner wall have just realized getting rid of fast of heat exchange tube leakage trouble in the shell and tube heat exchanger.
The base the O shape sealing washer the top cap the packing ring with the nut all is passed through stud connects, consequently only needs to press the base the O shape sealing washer the top cap the packing ring with the nut is in proper order from leaking the heat exchange tube and installing from inside to outside, and rethread spanner is right the nut is screwed up and just can be installed leak the both ends of heat exchange tube, and the mounting method is very simple and convenient.
In the course of treatment, the utility model discloses the equipment is simple and direct, and does not require processing environment, and processing technology requires lowly, and maneuverability is high, can realize simply, in time and handle effectively leaking the heat exchange tube.
Drawings
Fig. 1 is a longitudinal sectioning schematic diagram of the port of the leakage heat exchange tube fixed by the pipe plugging device of the present invention.
Illustration of the drawings: 1. a stud bolt; 2. a nut; 3. a gasket; 4. a top cover; an O-shaped sealing ring; 6. a base; 7. a heat exchange tube.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Please refer to fig. 1, which is a schematic view of the vertical cut of the port of the leakage heat exchange pipe fixed to the pipe plugging device of the present invention.
The utility model discloses connect gradually by the order of base (6), stud (1), O shape sealing washer (5), top cap (4), packing ring (3) and nut (2).
Specifically, with vertical the placing so that observe of heat exchange tube (7) tip, in the heat exchange tube (7) that leaks, contain base (6) stud (1) lower extreme with O shape sealing washer (5), wherein, will the lower extreme of stud (1) is screwed into in the screw of base (6) sleeve on base (6) O shape sealing washer (5). Outside heat exchange tube (7), contain top cap (4) stud (1) upper end washer (3) with nut (2), wherein, will top cap (4) pass stud (1) cover is in on base (6), the upper end of stud (1) in top cap (4) department exposes.
Furthermore, the O-shaped sealing ring (5) is arranged between the base (6) and the top cover (4), the gasket (3) and the nut (2) are sequentially sleeved on the upper end of the stud bolt (1), the nut (2) is screwed down, so that the O-shaped sealing ring (5) is extruded, and the inner wall of the heat exchange tube (7) is fixed with the O-shaped sealing ring (5) and the base (6).
Furthermore, the utility model discloses base (6) O shape sealing washer (5) top cap (4) packing ring (3) with nut (2) all are through stud (1) are connected.
Furthermore, the diameter of the surface of the top cover (4) opposite to the base (6) is equal.
Further, the utility model discloses only adopt quick, the simple and easy equipment of part mainly passes through O shape circle and the inseparable extrusion of heat exchange tube (7) inner wall have just realized the quick restoration to heat exchange tube (7) leakage fault in the shell and tube heat exchanger.
Furthermore, the water inlet end and the water outlet end are provided with the device of the utility model, which prevents the liquid outside the pipe from flowing into the pipe, thereby achieving the effect of plugging.
The utility model discloses the implementation method is as follows:
one end of the stud bolt (1) is screwed into a screw hole of the base (6), the O-shaped sealing ring (5) is sleeved on the base (6) through a screw rod of the stud bolt (1), then the part of the assembled pipe blocking device is put into the port of the heat exchange pipe (7) with the leakage detected, the other end of the stud bolt (1) is exposed outside the heat exchange tube (7), the top cover (4) is sleeved on the port of the leakage heat exchange tube (7) through the stud bolt (1), and pushes the top cover (4) to the outer end of the stud bolt (1) with the thread exposed, the top cover (4) is tightly attached to the port of the leakage heat exchange tube (7), and then the gasket (3) and the nut (2) are sleeved in sequence, and then, screwing the nut (2) by using a spanner to fix the inner wall of the heat exchange tube (7) with the O-shaped sealing ring (5) and the base (6).
Finally, it should be noted that the described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (6)
1. The utility model provides a shell and tube heat exchanger leaks with stifled pipe device, characterized by: the device consists of a base, a stud, an O-shaped sealing ring, a top cover, a washer and a nut; the specific connection relationship is as follows: one end of the stud bolt (1) is screwed into a screw hole of the base (6), the O-shaped sealing ring (5) is sleeved on the base (6) through a screw rod of the stud bolt (1), then the part of the assembled pipe blocking device is put into the port of the heat exchange pipe (7) with the leakage detected, the other end of the stud bolt (1) is exposed outside the heat exchange tube (7), the top cover (4) is sleeved on the port of the leakage heat exchange tube (7) through the stud bolt (1), and pushes the top cover (4) to the outer end of the stud bolt (1) with the thread exposed, the top cover (4) is tightly attached to the port of the leakage heat exchange tube (7), and then the gasket (3) and the nut (2) are sleeved in sequence, and then, screwing the nut (2) by using a spanner to fix the inner wall of the heat exchange tube (7) with the O-shaped sealing ring (5) and the base (6).
2. The tube plugging device for shell-and-tube heat exchanger leakage of claim 1, wherein: the base, the O-shaped sealing ring, the top cover, the gasket and the nut are sequentially formed by connecting double-end bolts.
3. The tube plugging device for shell-and-tube heat exchanger leakage of claim 1, wherein: the leaked heat exchange tubes comprise the base, the lower ends of the stud bolts and the O-shaped sealing rings, wherein the lower ends of the stud bolts are screwed into screw holes of the base, and the O-shaped sealing rings are sleeved on the base; outside the heat exchange tube, contain the top cap the stud upper end the packing ring with the nut, wherein, will the top cap passes stud cover is in on the base, the upper end of stud in top cap department exposes.
4. The tube plugging device for shell-and-tube heat exchanger leakage of claim 1, wherein: the diameters of the surfaces of the top cover opposite to the base are equal.
5. The pipe blocking device for the leakage of the shell-and-tube heat exchanger according to claim 1, wherein the device rapidly, simply and effectively realizes rapid elimination of the leakage fault of the coil pipe in the shell-and-tube heat exchanger by the tight extrusion of the O-shaped sealing ring and the inner wall of the coil pipe.
6. The pipe plugging device for the leakage of the shell-and-tube heat exchanger according to claim 1, wherein the device must be arranged at the water inlet end and the water outlet end to prevent the liquid outside the pipe from flowing into the pipe, thereby achieving the plugging effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020398581.XU CN212205798U (en) | 2020-03-25 | 2020-03-25 | Pipe blocking device for leakage of shell-and-tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020398581.XU CN212205798U (en) | 2020-03-25 | 2020-03-25 | Pipe blocking device for leakage of shell-and-tube heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212205798U true CN212205798U (en) | 2020-12-22 |
Family
ID=73824659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020398581.XU Expired - Fee Related CN212205798U (en) | 2020-03-25 | 2020-03-25 | Pipe blocking device for leakage of shell-and-tube heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212205798U (en) |
-
2020
- 2020-03-25 CN CN202020398581.XU patent/CN212205798U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201222 |
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| CF01 | Termination of patent right due to non-payment of annual fee |